Intel® Embedded Media and Graphics Driver (Intel® EMGD) FAQ

Display resolutions

1. What is the minimum standard active resolution supported by the integrated LVDS display controller on the Intel® System Controller Hub US15W chipset and Intel® Embedded Media and Graphics Driver (Intel® EMGD)?

One needs to be sure the chipset’s design specifications are not violated. The minimum standard active resolution is therefore 640 x 480 at 50Hz vertical refresh which equates to 20MHz pixel clock. It may be possible to pad the horizontal and vertical blanking and adjust the refresh rate higher to get a lower resolution at the minimum 20 MHz pixel clock, but that is something that needs to be explored with the panel manufacturer.

2. What is the minimum and maximum custom active resolution supported by the integrated LVDS display controller on Intel EMGD?

Theoretically, any timing mode that yields a pixel clock frequency between 20 MHz and 112 MHz mentioned by the respective chipset and processor design specifications could be supported by Intel EMGD. To determine if a particular timing mode can be supported, use the following formula as an example to determine the pixel clock frequency and then determine if it is between 20 MHz and 112 MHz: